[NTG-context] font fallbacks

Henning Hraban Ramm texml at fiee.net
Mon Aug 1 19:42:51 CEST 2022


Nobody?
I couldn’t find an example of more than one fallback, so I guess that’s 
not supported?

Hraban

Am 30.07.22 um 15:51 schrieb Henning Hraban Ramm via ntg-context:
> Hi,
> I thought I could use more than one fallback font, but as soon as I list 
> fallbacks, they stop working.
> 
> In my example, I’d like to take all missing glyphs from Segoe UI 
> Symbols, and what’s still missing (emojis) from EmojiOneColor, 
> preferably without specifying the exact range.
> 
> Additionally, I want to replace the tilde ~ of LM Modern:
> 
> """
> \definefontfallback[seguiFB]
>    [file:seguisym.ttf]
>    [0x00000-0xFFFFF]
>    [check=yes,force=no]
> 
> \definefontfallback[emoneFB]
>    [name:EmojiOneColor]
>    [0x00000-0xFFFFF]
>    [check=yes,force=no]
> 
> % replace tilde in LM
> \definefontfallback[tildeFB]
>    [file:seguisym.ttf]
>    [0x0007E-0x0007E]
>    [force=yes]
> 
> 
> \starttypescript [start]
>    \definetypeface [start] [rm] [serif] [cambria] 
> [default][fallbacks={seguiFB,emoneFB}]
>    \definetypeface [start] [ss] [sans]  [modern] 
> [default][fallbacks={seguiFB,emoneFB}]
>    \definetypeface [start] [tt] [mono]  [modern] 
> [default][fallbacks={seguiFB,tildeFB,emoneFB}]
>    \definetypeface [start] [mm] [math]  [modern] 
> [default][fallbacks={seguiFB,emoneFB}]
> \stoptypescript
> 
> 
> \setupbodyfont[start,rm,12pt]
> 
> \starttext
> 
> \Omega\ (Omega) and \aleph\ (Aleph)
> 
> \startbuffer[example]
> start missing characters: lmmono10-regular.otf
>     7  U+00327  ̧  COMBINING CEDILLA
>     7  U+00335  ̵  COMBINING SHORT STROKE OVERLAY
>    14  U+003B7  η  GREEK SMALL LETTER ETA
>     7  U+021A9  ↩  LEFTWARDS ARROW WITH HOOK
>   350  U+02500  ─  BOX DRAWINGS LIGHT HORIZONTAL
>    98  U+02502  │  BOX DRAWINGS LIGHT VERTICAL
>    42  U+02514  └  BOX DRAWINGS LIGHT UP AND RIGHT
>   133  U+0251C  ├  BOX DRAWINGS LIGHT VERTICAL AND RIGHT
>   154  U+02772  ❲  LIGHT LEFT TORTOISE SHELL BRACKET ORNAMENT
>   154  U+02773  ❳  LIGHT RIGHT TORTOISE SHELL BRACKET ORNAMENT
>    14  U+0278A  ➊  DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT ONE
> stop missing characters
> start missing characters: cambria.ttc
>     9  U+0278A  ➊  DINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT ONE
>     9  U+0FFFD  �  REPLACEMENT CHARACTER
> stop missing characters
> start missing characters: cambriai.ttf
>   266  U+0276C  ❬  MEDIUM LEFT-POINTING ANGLE BRACKET ORNAMENT
>   266  U+0276D  ❭  MEDIUM RIGHT-POINTING ANGLE BRACKET ORNAMENT
> stop missing characters
> \stopbuffer
> 
> \typebuffer[example]
> 
> \startlines
> \getbuffer[example]
> 
> {\ss\getbuffer[example]}
> \stoplines
> 
> \tex{abra}\arg{...}
> \type{kadabra} \type{~~~}
> 
> \stoptext
> """
> 
> What’s wrong?
> 
> Hraban
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